Amelia Boone, ultrarunner and obstacle racer (@arboone11) Amelia Boone is the queen of obstacle course racing, having won the Spartan Race World Championship in 2013 and the World’s Toughest Mudder in 2012, 2014, and 2015.

My own two favorites are short-track speed skating, especially those races where everybody falls down except for the guy in eighth place, who wins the gold medal, and snowboard racing, which is utterly insane.

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